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<div style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0cm;"><span style="color: black; font-family: ";Times New Roman";,";serif";; font-size: 13.5pt; mso-fareast-font-family: ";Times New Roman";; mso-fareast-language: EN-GB;">The ;<b>sis</b> ;command manages SIS operations: compression and/or deduplication. Data compression can be used on-the-fly, and/or as a scheduled background operation. This can be followed by deduplication, which is a method of reducing disk space usage by eliminating duplicate data blocks on a FlexVol volume, where only a single instance of each unique data blocks is stored.</span></div>
<div style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0cm;"></div>
<p></p>
<div><b>Why you need to RUN: ;</b></div>
<div><b><br /></b></div>
<div><b>Deduplicated Volumes or Aggregates Vulnerable to bug 657692<br />detected:</b><br />To prevent data avaiability disruption or severe performance impact please address the issue<br />below.<br />If your FlexVol volume or the aggregate containing the FlexVol volume is 70% full or more it is<br />recommended to run the<br />sis start -s /vol/<volname><br />command for systems that are on 7-Mode or<br />volume efficiency start -vserver <vservername> -volume<br /><volname> -scan-old-data true<br />command for systems that are running clustered Data ONTAP.<br />This will delete the existing fingerprint database and build a new one on the volumes and<br />aggregates.This can be a long running operation, however it will not require additional space<br />and will resolve any pre-existing issues with stale fingerprints. Deleting the deduplication<br />metadata does not affect the savings already on disk or the access to the logical data. </volname></vservername></volname></div>
<div></div>
<p></p>
<div style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0cm;"></div>
<div style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0cm;"></div>
<div style="line-height: normal; mso-margin-bottom-alt: auto; mso-margin-top-alt: auto;"><span style="color: black; font-family: ";Times New Roman";,";serif";; font-size: 13.5pt; mso-fareast-font-family: ";Times New Roman";; mso-fareast-language: EN-GB;">The ;<b>path</b> ;parameter is the full path of a FlexVol volume, its format is /vol/<i>vol_name</i>.</span></div>
<div></div>
<div></div>
<div><b style="mso-bidi-font-weight: normal;">First Check to make sure the licenses are installed</b></div>
<div></div>
<div>NAS>; <b style="mso-bidi-font-weight: normal;">license</b></div>
<div>nearstore_option xxxxxZH</div>
<div>a_sis xxxxxCG</div>
<div></div>
<div><b style="mso-bidi-font-weight: normal;">Enable sis (deduplication) on the volume</b></div>
<div>NAS>; sis on /vol/testVol</div>
<div>SIS for “/vol/testVol” is enabled.</div>
<div>Already existing data could be processed by running “sis start -s /vol/testVol”.</div>
<div></div>
<div><b style="mso-bidi-font-weight: normal;">Initiate deduplication service</b></div>
<div>NAS>; sis start -s /vol/testVol</div>
<div></div>
<div><b style="mso-bidi-font-weight: normal;">Sis status will display the state and running status on all volumes</b></div>
<div>NAS>; sis status</div>
<div></div>
<div>Path<span style="mso-tab-count: 1;"> ; ; ; ; ; ; </span>State<span style="mso-tab-count: 1;"> ; ; ; ; </span>Status<span style="mso-tab-count: 1;"> ; ; </span>Progress</div>
<div>/vol/Shares<span style="mso-tab-count: 1;"> ; ; ; ; ; ; ; </span>Enabled<span style="mso-tab-count: 1;"> ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; </span>Idle<span style="mso-tab-count: 1;"> ; ; ; ; ; ; ; </span>Idle for 10:05:52</div>
<div>/vol/testVol<span style="mso-tab-count: 1;"> ; ; ; ; ; ; </span>Enabled<span style="mso-tab-count: 1;"> ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; </span>Idle<span style="mso-tab-count: 1;"> ; ; ; ; ; ; ; </span>Idle for 08:48:40</div>
<div>/vol/luns<span style="mso-tab-count: 1;"> ; ; ; ; ; ; ; ; ; ; ; ; ; </span>Disabled<span style="mso-tab-count: 1;"> ; ; ; ; ; ; ; ; ; ; ; ; ; ; </span>Idle<span style="mso-tab-count: 1;"> ; ; ; ; ; ; ; </span>Idle for 2330:43:02</div>
<div>/vol/vm<span style="mso-tab-count: 1;"> ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; </span>Enabled<span style="mso-tab-count: 1;"> ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; </span>Idle<span style="mso-tab-count: 1;"> ; ; ; ; ; ; ; </span>Idle for 00:09:35</div>
<div>View the status on a specific volume</div>
<div>NAS>; sis status /vol/testVol</div>
<div></div>
<div>Path<span style="mso-tab-count: 1;"> ; ; ; ; ; ; </span>State<span style="mso-tab-count: 1;"> ; ; ; ; </span>Status<span style="mso-tab-count: 1;"> ; ; </span>Progress</div>
<div>/vol/testVol<span style="mso-tab-count: 1;"> ; ; ; ; ; ; </span>Enabled<span style="mso-tab-count: 1;"> ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; </span>Idle<span style="mso-tab-count: 1;"> ; ; ; ; ; ; ; </span>Idle for 00:11:23</div>
<div><b style="mso-bidi-font-weight: normal;">After sis completes, use df to show the amount saved and deduplication percentage</b></div>
<div>NAS>; df -sh /vol/testVol</div>
<div></div>
<div>Filesystem<span style="mso-tab-count: 1;"> ; ; ; ; ; ; ; ; ; </span>used<span style="mso-tab-count: 1;"> ; ; ; ; ; </span>saved<span style="mso-tab-count: 1;"> ; ; ; </span>%saved</div>
<div>/vol/testVol/<span style="mso-tab-count: 1;"> ; ; ; ; </span>519GB<span style="mso-tab-count: 1;"> ; ; </span>754GB<span style="mso-tab-count: 1;"> ; ; </span>59%</div>
<div><b style="mso-bidi-font-weight: normal;">Verify that sis is scheduled to run frequent enough at the times you want</b></div>
<div>NAS>; sis config</div>
<div></div>
<div>Path<span style="mso-tab-count: 1;"> ; ; ; ; ; ; </span>Schedule</div>
<div>/vol/shares<span style="mso-tab-count: 1;"> ; ; ; ; ; ; ; ; </span>sun-sat@0</div>
<div>/vol/testVol<span style="mso-tab-count: 1;"> ; ; ; ; ; ; </span>sun-sat@0</div>
<div>/vol/luns<span style="mso-tab-count: 1;"> ; ; ; ; ; ; ; ; ; ; ; ; ; </span>sun-sat@0</div>
<div>/vol/vm<span style="mso-tab-count: 1;"> ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; </span>sun-sat@0</div>
<div>Below is the help output of sis config</div>
<div>NAS>; sis help config</div>
<div>sis config [ [ -s schedule ] <path> | <path> … ]</path></path></div>
<div>– Sets up, modifies, and retrieves the schedule of SIS volumes.</div>
<div></div>
<div><b style="mso-bidi-font-weight: normal;">Reschedule for nightly at 11pm</b></div>
<div>NAS>; sis config -s sun-sat@23 /vol/testVol</div>
<div>Verify the new configuration</div>
<div>NAS>; sis config /vol/testVol</div>
<div>Path<span style="mso-tab-count: 1;"> ; ; ; ; ; ; </span>Schedule</div>
<div>/vol/testVol<span style="mso-tab-count: 1;"> ; ; ; ; ; ; </span>sun-sat@23</p>
<p><b style="-webkit-text-stroke-width: 0px; color: black; font-family: 'Times New Roman'; font-size: medium; font-style: normal; font-variant: normal; letter-spacing: normal; line-height: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px;">sis</b><span style="-webkit-text-stroke-width: 0px; color: black; display: inline !important; float: none; font-family: 'Times New Roman'; font-size: small; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px;"><span> ;</span></span><b style="-webkit-text-stroke-width: 0px; color: black; font-family: 'Times New Roman'; font-size: medium; font-style: normal; font-variant: normal; letter-spacing: normal; line-height: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px;">status Examples:</b><span style="-webkit-text-stroke-width: 0px; color: black; display: inline !important; float: none; font-family: 'Times New Roman'; font-size: small; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px;"></span></p>
<div style="-webkit-text-stroke-width: 0px; color: black; font-family: 'Times New Roman'; font-size: medium; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px;">This command displays the status of all SIS enabled volumes. The following example shows the status output in short format:</div>
<dl style="-webkit-text-stroke-width: 0px; color: black; font-family: 'Times New Roman'; font-size: medium; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px;">
<dt>
<pre> toaster>; sis status<br /> Path State Status Progress<br /> /vol/dvol_1 Enabled Idle Idle for 04:53:29<br /> /vol/dvol_2 Enabled Pending Idle for 15:23:41<br /> /vol/dvol_3 Disabled Idle Idle for 37:12:34<br /> /vol/dvol_4 Enabled Active 25 GB Scanned<br /> /vol/dvol_5 Enabled Active 25 MB Searched<br /> /vol/dvol_6 Enabled Active 40 MB (20%) Done<br /> /vol/dvol_7 Enabled Active 30 MB Verified<br /> /vol/dvol_8 Enabled Active 10% Merged<br /> /vol/dvol_9 Enabled Active 23 MB Scanned, 20 MB Compressed<br /></pre>
</dt>
</dl>
<p><span style="-webkit-text-stroke-width: 0px; color: black; display: inline !important; float: none; font-family: 'Times New Roman'; font-size: small; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px;"><b>The dvol_1 is Idle</b>. The last SIS operation on the volume was finished 04:53:29 ago.</span></p>
<div style="-webkit-text-stroke-width: 0px; color: black; font-family: 'Times New Roman'; font-size: medium; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px;"><b>The dvol_2 is Pending</b> for resource limitation. The SIS operation on the volume will become Active when the resource is available.</div>
<div style="-webkit-text-stroke-width: 0px; color: black; font-family: 'Times New Roman'; font-size: medium; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px;"><b>The dvol_3 is Idle </b>because the SIS operation is disabled on the volume.</div>
<div style="-webkit-text-stroke-width: 0px; color: black; font-family: 'Times New Roman'; font-size: medium; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px;"><b>The dvol_4 is Active. </b>The SIS operation is doing whole volume scanning. So far, it has scanned 25GB of data.</div>
<div style="-webkit-text-stroke-width: 0px; color: black; font-family: 'Times New Roman'; font-size: medium; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px;">T<b>he dvol_5 is Active.</b> The operation is searching for SIS data, there are 25MB of data already searched.</div>
<div style="-webkit-text-stroke-width: 0px; color: black; font-family: 'Times New Roman'; font-size: medium; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px;"><b>The dvol_6 is also Active</b>. The operation has saved 40MB of data. This is 20% of the total SIS data found in the searching stage.</div>
<div style="-webkit-text-stroke-width: 0px; color: black; font-family: 'Times New Roman'; font-size: medium; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px;"><b>The dvol_7 is Active. </b>It is verifying the metadata of processed data blocks. This process will remove unused metadata.</div>
<div style="-webkit-text-stroke-width: 0px; color: black; font-family: 'Times New Roman'; font-size: medium; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px;"><b>The dvol_8 is Active.</b> Verified metadata is being merged. This process will merge together all verified metadata of processed data blocks to an internal format which supports fast SIS operation.</div>
<div style="-webkit-text-stroke-width: 0px; color: black; font-family: 'Times New Roman'; font-size: medium; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px;"><b>The dvol_9 is Active.</b> The operation is scanning the volume and so far it has compressed 20MB of data.</div>
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<div>Credit : Netapp <a href="https://library.netapp.com/ecmdocs/ECMP1511537/html/man1/na_sis.1.html">https://library.netapp.com/ecmdocs/ECMP1511537/html/man1/na_sis.1.html</a></div>
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